1. Having hooked a screw-driver, remove a fixing ring dusterа the piston.

2. Remove duster.

3. Slowly submitting to the union of connection of a flexible brake hose the compressed air, push out the piston from the cylinder, - before a piston end face establish wooden брусок in the thickness of an order of 30 mm.

4. Having hooked a screw-driver, take from the cylinder of a support a piston cuff.

5. Remove from the support case a protective cover and the plug of a lock bolt (finger). 6. Remove a protective cover of a directing bolt (finger). 7. Attentively study a condition of the removed components. Check up the case of a support and the piston on presence of signs of non-uniform deterioration, mechanical damages and traces of development of corrosion. Make sure of absence of signs of ageing of a material dusterа, a cuff and protective covers. Defective components replace within the limits of let out ремнаборов.